@article{102457,
author = {Ladislav Nebesk\'y},
title = {Route systems and bipartite graphs},
journal = {Czechoslovak Mathematical Journal},
volume = {41},
year = {1991},
pages = {260-264},
zbl = {0765.05060},
mrnumber = {1105440},
language = {en},
url = {http://dml.mathdoc.fr/item/102457}
}
Nebeský, Ladislav. Route systems and bipartite graphs. Czechoslovak Mathematical Journal, Tome 41 (1991) pp. 260-264. http://gdmltest.u-ga.fr/item/102457/
Graphs & Digraphs, Prindle, Weber & Schmidt, Boston 1979. (1979) | MR 0525578
On certain extensions of intervals in graphs, . Časopis pěst. mat. 115, 1990, 171-177. (1990) | MR 1054004